20.3 Displaying Covers

The browser will attempt to display cover images if they're
available. By default it looks for images cover_small.jpg,
cover_med.jpg, etc. Customize emms-browser-covers to use your
own covers. Note that you'll probably want to resize your existing
covers to particular sizes. Suggested sizes are 100x100 for small, and
200x200 for medium.

Also, Emacs by default will jump around a lot when scrolling a buffer
with images. In order to prevent that, you can set
scroll-up-aggressively and scroll-down-aggressively to the
number “0.0”.

To show a 'no cover' image for albums which don't have a cover, add
the following code to your .emacs: